The ACME Dynamics, Inc. model AP75 is the smallest of the DYNAPRIME All Purpose model pumps. Weighing less than 330 lbs., the 3' AP75 is a tough cast iron centrifugal pump powered by a Lister/Petter model AD1, air-cooled diesel engine, complete with built in fuel tank and mounted on a site trailer with detachable handles. Available in your choice of colors. The AP 75 is available with a choice of impellers. The pump can be reconfigured to handle high heads, high flows, or large solids by quickly changing the pump internals. The sliding vane vacuum pump enables the pump to prime and re-prime from a dry condition without the need of priming liquid. Shaft sealing is accomplished by using a semi-mechanical, spring loaded pressure seal that can quickly be changed on site in minutes.